US PATENT SUBCLASS 83 / 493
.~.~.~ Including means to rotate both elements at different speeds

Current as of: June, 1999
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83 /   HD   CUTTING

469  DF  ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER {11}
491  DF  .~ Means to rotate or oscillate tool {1}
492  DF  .~.~ Including means to rotate both elements of tool pair {2}
493.~.~.~ Including means to rotate both elements at different speeds

DEFINITION

Classification: 83/493

(under subclass 492) Device provided with means to effect a rate of rotation of one of the cutters unequal to the rate of rotation of the other cutter.